Floating shoulder (FS)

Combination of a scapular-neck fracture and a mid-clavicular ipsilateral fracture.

Pudendal nerve entrapment syndrome (PNES)

Uncommon chronic pain, in which the pudendal nerve (located in the pelvis) is entrapped or compressed.

Cauda equina syndrome (CES)

Compression of cauda equina group of nerves, resulting in symptoms that include bowel and bladder dysfunction, saddle anesthesia, and varying degrees of loss of lower extremity sensory and motor function.

Calcium pyrophosphate deposition (CPPD) disease

Crystal arthritis caused by calcium pyrophosphate (CPP) crystals.